/*
 * Copyright (c) 2010, Michael Hengler (developer (at) hengler (dot) de),
 * Nikolaus Moll (developer (at) miblounge (dot) net).
 * All rights reserved.
 * 
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions are met:
 * * Redistributions of source code must retain the above copyright
 * notice, this list of conditions and the following disclaimer.
 * * Redistributions in binary form must reproduce the above copyright
 * notice, this list of conditions and the following disclaimer in the
 * documentation and/or other materials provided with the distribution.
 * * Neither the name of the Jombi project nor the
 * names of its contributors may be used to endorse or promote products
 * derived from this software without specific prior written permission.
 * 
 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
 * ARE DISCLAIMED. IN NO EVENT SHALL JOMBI BE LIABLE FOR ANY
 * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
 * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
 * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
 * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
 * LIABILITY, OR TORT(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH
 * DAMAGE.
 */
package net.miblounge.jombi.impl.widgets;

import net.miblounge.jombi.impl.util.StringComparator;

import org.jowidgets.common.types.Markup;
import org.jowidgets.common.verify.IInputVerifier;
import org.jowidgets.spi.impl.mask.TextMaskVerifierFactory;
import org.jowidgets.spi.impl.verify.InputVerifierHelper;
import org.jowidgets.spi.widgets.IComboBoxSpi;
import org.jowidgets.spi.widgets.setup.IComboBoxSetupSpi;

public class ComboBoxImpl extends ComboBoxSelectionImpl implements IComboBoxSpi {

	private String oldText = "";
	private final IInputVerifier inputVerifier;

	public ComboBoxImpl(final Object parentUiReference, final IComboBoxSetupSpi setup) {
		super(parentUiReference, setup);

		getUiReference().setEditable(true);

		final IInputVerifier maskVerifier = TextMaskVerifierFactory.create(this, setup.getMask());
		inputVerifier = InputVerifierHelper.getInputVerifier(maskVerifier, setup);

		getUiReference().editTextChanged.connect(this, "eventTextChanged(String)");
	}

	@Override
	public void setEditable(final boolean editable) {
		super.setEditable(editable);
		getUiReference().setEditable(true);
	}

	@Override
	public String getText() {
		return getUiReference().currentText();
	}

	@Override
	public void setText(final String text) {
		getUiReference().setEditText(text);
	}

	protected void eventTextChanged(final String currentText) {
		final StringComparator comparator = new StringComparator(
			oldText,
			currentText,
			getUiReference().lineEdit().cursorPosition());

		if (inputVerifier == null
			|| inputVerifier.verify(currentText, comparator.getText(), comparator.getStart(), comparator.getEnd())) {
			oldText = currentText;
			// dispatch event 
			fireInputChanged(currentText);
		} else {
			final int lastPosition = getUiReference().lineEdit().cursorPosition() - comparator.getChangeCount();
			this.setText(oldText);
			getUiReference().lineEdit().setCursorPosition(lastPosition);
		}

	}

	@Override
	public void setSelection(final int start, final int end) {
		final int length = end - start + 1;
		getUiReference().lineEdit().setSelection(start, length);
	}

	@Override
	public void setCaretPosition(final int pos) {
		getUiReference().lineEdit().setCursorPosition(pos);
	}

	@Override
	public int getCaretPosition() {
		return getUiReference().lineEdit().cursorPosition();
	}

	@Override
	public void setFontSize(final int size) {
		// TODO NM implement
	}

	@Override
	public void setFontName(final String fontName) {
		// TODO NM implement
	}

	@Override
	public void setMarkup(final Markup markup) {
		// TODO NM implement
	}
}
